• Facilitators: those trained to facilitate different restorative justice practices (e.g., mediator, conferencing, circles). Depending on the literature, these may be referred to as mediators or practitioners in the text.

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• Restorative justice: any process which enables those harmed by crime, those responsible for that harm and possibly the community, if they freely consent, to participate in the resolution of matters arising from the offence, through the help of a trained facilitator. Restorative justice makes use of different methods (e.g., mediation) with the aim of achieving a consensual and co-constructed form of justice.

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• Trainers: those who instruct participants in a training course giving them guidance and working together with their audience. Depending on the literature, these may be referred to as instructors, supervisors or teachers in the text.

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• Trainees: those who received guidance and instructions as participants in a training course. Depending on the literature, these may be referred to as students, participants, or learners in the text.